At first glance, this thing may not look like what it’s supposed to be, but the Traveler is a USB flash drive the size of a credit card with a plug that sticks out on the back corner. It’s pretty thin, too, so don’t be surprised if you can fit it snugly into your wallet for safekeeping. Storage capacity starts at 16GB, but there are also 32GB and 64GB models available, in case you need the extra space. Once you plug it into your Mac or PC, the Traveler automatically backs up whatever data you want it to. (Retail price: starts at $100)